right now, wolf, is a letter addressed to president obama that contained a suspicious substance and that's all that we're being told, was intercepted at an offsite mail processing facility. this is a mail facility run by the secret service where they get all the mail addressed to the white house. and they check it for this very reason, to screen it, to do scientific tests to make sure it's safe to come here. it had a suspicious substance in it, we are told, wolf, by a law enforcement source that there are similarities to the letter sent to senator wicker. what exactly does that mean i've asked my sources, so far, wolf, inconclusive at this point. we do know there were some marks, i guess you could say identifying marks in the wicker letter, a postmark from memphis, tennessee. there was no return sender. we don't know if that nor the message included in the letter to senator wicker if that bears the similarity, but we are being told that there are similarities. so it certainly makes you wonder if it could have been sent from the same person or if they think -- if authorities think it is.